diff options
Diffstat (limited to 'c/src/lib/libbsp/no_cpu/no_bsp/clock')
-rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c b/c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c deleted file mode 100644 index 426b55137b..0000000000 --- a/c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c +++ /dev/null @@ -1,143 +0,0 @@ -/* ckinit.c - * - * This file provides a template for the clock device driver initialization. - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#include <stdlib.h> - -#include <rtems.h> -#include <bsp.h> -#include <clockdrv.h> - -/* - * The interrupt vector number associated with the clock tick device - * driver. - */ - -#define CLOCK_VECTOR 4 - -/* - * Clock_driver_ticks is a monotonically increasing counter of the - * number of clock ticks since the driver was initialized. - */ -volatile rtems_unsigned32 Clock_driver_ticks; - -/* - * Clock_isrs is the number of clock ISRs until the next invocation of - * the RTEMS clock tick routine. The clock tick device driver - * gets an interrupt once a millisecond and counts down until the - * length of time between the user configured microseconds per tick - * has passed. - */ - -rtems_unsigned32 Clock_isrs; /* ISRs until next tick */ - -/* - * The previous ISR on this clock tick interrupt vector. - */ - -rtems_isr_entry Old_ticker; - -/* - * Clock_initialize - * - * Device driver entry point for clock tick driver initialization. - */ - -rtems_device_driver Clock_initialize( - rtems_device_major_number major, - rtems_device_minor_number minor, - void *pargp, - rtems_id tid, - rtems_unsigned32 *rval -) -{ - Install_clock( Clock_isr ); -} - -/* - * Reinstall_clock - * - * Install a clock tick handler without reprogramming the chip. This - * is used by the polling shared memory device driver. - */ - -void ReInstall_clock( - rtems_isr_entry clock_isr -) -{ - rtems_unsigned32 isrlevel = 0; - - /* - * Disable interrupts and install the clock ISR vector using the - * BSP dependent set_vector routine. In the below example, the clock - * ISR is on vector 4 and is an RTEMS interrupt. - */ - - rtems_interrupt_disable( isrlevel ); - (void) set_vector( clock_isr, CLOCK_VECTOR, 1 ); - rtems_interrupt_enable( isrlevel ); -} - -/* - * Install_clock - * - * Install a clock tick handler and reprograms the chip. This - * is used to initially establish the clock tick. - */ - -void Install_clock( - rtems_isr_entry clock_isr -) -{ - /* - * Initialize the clock tick device driver variables - */ - - Clock_driver_ticks = 0; - Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000; - - /* - * If ticks_per_timeslice is configured as non-zero, then the user - * wants a clock tick. - */ - - if ( BSP_Configuration.ticks_per_timeslice ) { - Old_ticker = ( rtems_isr_entry ) set_vector( clock_isr, CLOCK_VECTOR, 1 ); - /* - * Hardware specific initialize goes here - */ - - /* XXX */ - } - - /* - * Schedule the clock cleanup routine to execute if the application exits. - */ - - atexit( Clock_exit ); -} - -/* - * Clean up before the application exits - */ - -void Clock_exit( void ) -{ - if ( BSP_Configuration.ticks_per_timeslice ) { - - /* XXX: turn off the timer interrupts */ - - /* XXX: If necessary, restore the old vector */ - } -} |